The WHO report is a comprehensive review of over 900 publications, consisting of over 200 reviews, systematic reviews, meta-analyses and meta-syntheses covering over 3000 studies, and over 700 further
individual studies, made up of English and Russian academic literature form January 2000 to May 2019.
Similarly to other large scale reviews, this report was produced because of the lack of consistent policy across member states due to a lack of awareness of the evidence, of the health benefits of the arts.